Track healthy weight gain week by week with personalized recommendations based on your BMI and pregnancy stage.
Calculate how much weight to gain during pregnancy based on CDC guidelines. Track your progress and get personalized recommendations for a healthy pregnancy.
Calculate your recommended pregnancy weight gain using CDC guidelines and medical recommendations. Enter your pre-pregnancy weight, current weight, height, and pregnancy week to get personalized advice for healthy weight gain during pregnancy.
• 1st Trimester: 1-4 lbs total weight gain
• 2nd & 3rd Trimester: 1-2 lbs per week
• Twin pregnancies: 37-54 lbs total recommended
• Based on pre-pregnancy BMI: Guidelines vary by starting weight
• Baby's Development: Adequate nutrition supports healthy fetal growth
• Reduce Complications: Prevents gestational diabetes and preeclampsia
• Delivery Safety: Reduces C-section risk and labor complications
• Postpartum Health: Easier to lose weight after pregnancy
First Trimester (0-13 weeks): 1-4 lbs total weight gain
Second Trimester (14-27 weeks): 1-2 lbs per week
Third Trimester (28-40 weeks): 1-2 lbs per week
Important: Weight gain in first trimester may be minimal or even negative due to morning sickness. This is normal and weight gain typically accelerates in second trimester.
Underweight (BMI < 18.5): 28-40 lbs (12.7-18.1 kg)
Normal Weight (BMI 18.5-24.9): 25-35 lbs (11.3-15.9 kg)
Overweight (BMI 25.0-29.9): 15-25 lbs (6.8-11.3 kg)
Obese (BMI ≥ 30.0): 11-20 lbs (5.0-9.1 kg)
Twin Pregnancies:
• Normal Weight: 37-54 lbs • Overweight: 31-50 lbs • Obese: 25-42 lbs
• Sudden, rapid weight gain (more than 2 lbs per week)
• No weight gain or weight loss after the first trimester
• Severe morning sickness preventing adequate nutrition
• Signs of gestational diabetes or high blood pressure
• Unusual swelling in hands, face, or feet
• Any concerns about your eating patterns or weight
The recommended weight gain depends on your pre-pregnancy BMI:
Weight gain is typically minimal in the first trimester (1-4 pounds total). Many women experience weight loss due to morning sickness, which is normal. Most weight gain occurs during the second and third trimesters at a rate of 1-2 pounds per week.
Twin pregnancies require higher weight gain:
Calorie needs increase gradually throughout pregnancy:
Remember: You're not "eating for two" - quality nutrition matters more than quantity!
Yes, it's common to lose weight during the first trimester due to morning sickness, nausea, and vomiting. As long as you stay hydrated and eat when possible, temporary weight loss is usually not concerning. Most women begin gaining weight steadily in the second trimester.
Contact your healthcare provider if you experience:
It typically takes at least 6-12 months to return to pre-pregnancy weight. Only about 10 pounds come off immediately after delivery (baby, placenta, and amniotic fluid). The remaining weight loss happens gradually through breastfeeding, healthy eating, and exercise. Be patient with your body - it took 9 months to gain the weight!
• Baby: 6-8 pounds
• Placenta: 1-2 pounds
• Amniotic fluid: 2 pounds
• Breast tissue: 1-3 pounds
• Blood volume: 3-4 pounds
• Fat stores: 6-8 pounds
• Uterus growth: 2 pounds
Total: Approximately 25-35 pounds for normal weight women
Weeks 1-13: 1-4 lbs total
Focus on prenatal vitamins and nutrition
Weeks 14-27: 1-2 lbs per week
Steady growth phase, appetite returns
Weeks 28-40: 1-2 lbs per week
Final growth spurt, prepare for delivery
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